Electric toothbrush



FIG. 1 is a perspective view of the claimed design;

FIG. 2 is a left side view of the claimed design;

FIG. 3 is a right side view of the claimed design;

FIG. 4 is a front view of the claimed design;

FIG. 5 is a back view of the claimed design;

FIG. 6 is a top view of the claimed design; and,

FIG. 7 is a bottom view of the claimed design.

The broken lines in the drawings depict environment that forms no partof the claimed design.

CLAIM The ornamental design for an electric toothbrush, as shown anddescribed.